“The MPX Copperhead considerably reduces the length, width, and size of the MPX platform making it the most compact addition to the MPX family of firearms,” said Tom Taylor, Chief Marketing Officer and Executive Vice President, Commercial Sales, SIG SAUER, Inc. “The Copperhead is the perfect combination of the features and performance our consumers expect from a SIG MPX in a compact package.”

The MPX Copperhead features a monolithic Elite Series Cerakote® finish upper receiver, with an integrated stock knuckle lower, and a 3.5” barrel with integrated muzzle brake. The MPX Copperhead comes equipped with the new SIG SAUER Pivoting Contour Brace (PCB) giving pistol users a brace that easily adapts to the movement of the shooters arm with a patented swivel operation for perfect placement, and can be rapidly deployed.

About SIG SAUER, Inc.
SIG SAUER, Inc. is a leading provider and manufacturer of firearms, electro-optics, ammunition, airguns, suppressors, and training. For over 100 years SIG SAUER, Inc. has evolved, and thrived, by blending American ingenuity, German engineering, and Swiss precision. Today, SIG SAUER is synonymous with industry-leading quality and innovation which has made it the brand of choice amongst the U.S. Military, the global defense community, law enforcement, competitive shooters, hunters, and responsible citizens. Additionally, SIG SAUER is the premier provider of elite firearms instruction and tactical training at the SIG SAUER Academy – a world class, state-of-the-art, 140-acre training facility. SIG SAUER is headquartered in Newington, New Hampshire, and has more than 1,700 employees across eight locations, and is the largest member of a worldwide business group that includes SIG SAUER GmbH & Co. KG in Germany. For more information about the company and product line visit: sigsauer.com.

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Sig Sauer had a rewards rebate program a little over a year ago. They offered 2 magazines if you purchased certain pistols that qualified. I purchased 2 pistols but never received the 4 total magazines that was due to me. I contacted Sig Headquarters to inquire about them many times. I was never contacted by my many requests. Be careful dealing with Sig Sauer. They do not honor their word or their warranties. Many of their pistols also jam. Be warned.

That’s probably one of the most sensible comments here. With a couple more inches barrel, a collapsible stock and full auto it makes a lot more sense; Kind of like a modern take on the Micro Uzi or something.

Perfectly sized to conceal in a student book bag or a shopping bag at the mall, clearly it’s intended venue.

So much for the fiction that gun owners are all about target shooting and hunting, more products like this will help fuel the anti-gunners efforts. But that’s OK because SIG is making money, and really, that’s what’s important, right?

I kind of see the market for this as being gun collector SWAT team type guys. I know some of those.

There’s a whole thing in that world about “the perfect weapon to fit inside your jacket” and so forth. The price point means that it ain’t really accessible to everyday gangsters. Mostly, from what I can tell, things like this are range toys that don’t really get taken out of the safe that much. They’re one of those “bring to a range day and have all your friends shoot it and ooh and ahhh over it and display envy” type things.

That said, I have a Gen 2 MPX, have shot the living hell out of that thing, and continue to do so. I love it. I use it as an iron sights training tool since my rifles have optics on them. Keeps those skills fresh.

Total length: Way less than this
Barrel length: Longer than this
Barrel Twist: Who cares
Weight: Wayyyyyy lighter than this (even with a 33rd mag)
Finish: Probably tougher than this
Caliber: 9mm Luger
MSRP: $500

There is no earthly reason for this Copperhead to exist, and even less reason for anyone to buy it.

That’s the magic! It is so ugly you can’t even look at it, thus it is always concealed! Combine that with the pocket carry since it is ultra-compact, it just couldn’t get any better. I’m guessing that if they throw in 100 rounds of 9mm HP, the price will settle around $20.

Still waiting for the CZ Scorpion compact version “Coming summer” last year.
I guess these are just semi auto versions on SMGs.
Why does SIG make these? Answer is To make money.
If you don’t like it, simple, just don’t buy it

This is the winning comment, I think. And, there is an adaptor kit for an SBA3 adjustable brace, if you must have a collapsing stock… I mean brace. (yeah, eyes roll back into my head and get lost forevvvvvver in the brain hurt of ATF stupid…).

Dosn’t mean this MPX is bad, though. This 9×19 PDW makes sense– as much sense as any subcompact PDW/SMG in 9mm– so long as money is no object to you (and you’re cool with a 3.5″ tube, ha). The micro Scorpion is somewhere in between, around where the Stribog and the various AR 9mm types fall in, but this Sig MPX competes with things like Kriss and B&T… fancy high-dollar weaponry. If you have the money, buy the gun you want…buy the one that fits your needs, irrespective of price. I would. Why not? I have often thought a Rattler or Q Honey Badger makes a lot of sense for my routines, if not much sense in my budget. “Bang for your buck” really only matters if the bucks are limited….

But, for the working stiff… us average joes… those bucks for the bangs do matter. When the same tool & kit requirements need to be covered, there is so much more value in the “sort of AR” platform (or “AR type” variation, whatever…) Extar EP9 than the Sig MPX. So long as the firearm is reliable and durable, it shoots the same dinky 9×19 round, and we can pop the functionally same red dot or reflex optics on it. Does the same damn thing… it’s just a tool, after all. (And the Extar EP9 has a 6.5″ barrel… just saying.)

And all of our arms are like that, right? Tools in the toolbox? That theoretical guy with all the best of the best fancy weaponry certainly doesn’t faze or worry us Arizona desert folks. We roll around in cheap homebuilt 4x4s and maintain reliable arms, zeroed and spitting out the same lead as those hipster guys with vehicles and weaponry featured in Recoil magazine. It all fights the same, I’d wager… or, pretty sure nobody will feel anymore special being tagged with a hit from a Sig MPX or B&T, then they would an Extar or Kel-Tec. Or Scorpion, or Stribog, or FX-9 for that matter….

But then, folks like me and some dude aren’t really the intended market for this kind of kit. The Extar is aimed right at us. I’ve thought about scooping up an Extar for months now. Doesn’t hurt that it’s a locally made arm, either– I like that. The main reason I am being patient is because I would like to see the 10mm version reviews and reports from the wild, first…. Be safe.

Meanwhile, ruger makes a very capable 9mm carbine for less than 1/3 the cost that could *very* easily be given a similarly tiny barrel and folding/collapsible brace by some enterprising aftermarket company. It also accepts glock mags as-is and will probably have an adapter for just about every pistol-caliber magazine under the sun within a few years. Oh, and it can readily be modified to shoot everything from .22LR to 10mm and beyond. Why would I want the SIG again?…

Eh. Each to their own, but this one just isn’t my thing. Especially at that price point. For $1800, I could get that Henry Big Boy I’ve been wanting, and have enough left over for a nice .357 revolver (which I’ve also been wanting).

Your typical 9mm full size pistol has a longer barrel, much lower weight, is a fraction of the overall size and bulk, can take extended magazines up to about 30 rounds, and you can buy as many as six of them for the same price.

Not seeing a reason to buy this thing.

Even if the Cerakote color is the latest and most fashionable shade of “Tacticool”.

Just send a photo of this “weapon” to your own senators and congressmen avoid the delay in banning all firearms, This appears to grabbers as THE PERFECT EXAMPLE of why we deplorables have to be stripped of the RKBA, and have all weapons and ammo confiscated…….. You stick your chin out, expect to get knocked out…I’ll not buy one.